Reduce worker count to speed up M2 (#73)

There were too many workers on macOS. 8 workers is too much on the M2, now running 4 and getting much better performance.
erincatto · Dec 10, 2023 · 6e7b835 · 6e7b835
1 parent d484c6c
commit 6e7b835
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/samples/sample.cpp b/samples/sample.cpp
@@ -71,7 +71,8 @@ Sample::Sample(const Settings& settings)
 {
 	b2Vec2 gravity = {0.0f, -10.0f};
 
-	uint32_t maxThreads = B2_MIN(8, enki::GetNumHardwareThreads());
+	uint32_t maxThreads = B2_MIN(8, enki::GetNumHardwareThreads() / 2);
+	printf("Box2D worker count = %d\n", maxThreads);
 	m_scheduler.Initialize(maxThreads);
 	m_taskCount = 0;